# 4.10: Isosceles Triangles

Difficulty Level:

**At Grade**Created by: CK-12Estimated9 minsto complete

%

Progress

**Practice**Isosceles Triangles

MEMORY METER

This indicates how strong in your memory this concept is

Practice

Progress

Estimated9 minsto complete

%

Estimated9 minsto complete

%

Practice Now

MEMORY METER

This indicates how strong in your memory this concept is

Turn In

### Notes/Highlights Having trouble? Report an issue.

Color | Highlighted Text | Notes | |
---|---|---|---|

Show More |

Base Angles

The base angles of an isosceles triangle are the angles formed by the base and one leg of the triangle.Base Angles Theorem Converse

The base angles theorem converse states if two angles in a triangle are congruent, then the sides opposite those angles are also congruent.Isosceles Triangle Theorem

The Isosceles Triangle Theorem states that the perpendicular bisector of the base of an isosceles triangle is also the angle bisector of the vertex angle.Triangle Sum Theorem

The Triangle Sum Theorem states that the three interior angles of any triangle add up to 180 degrees.Vertical Angles

Vertical angles are a pair of opposite angles created by intersecting lines.### Image Attributions

Show
Hide
Details

Description

This concept will teach students the properties of isosceles triangles and how to apply them to different types of problems.

Learning Objectives

None

Related Materials

Difficulty Level:

At Grade
Subjects:

## Concept Nodes:

Date Created:

Jul 17, 2012
Last Modified:

Oct 05, 2016
Vocabulary

None

Files can only be attached to the latest version of Modality